Lock for sliding doors.



No. 700,227. Patented May 20. |002.

A. NEwELL.

LOCK FOR SLIDING DOUBS.

(Application filed Oct. 13, 1900.) (No Model.) v `2 Sheets-Sheet I.

TN Nonms versus co.. PHOTO-uma.. WASHINGTON. D. c.

Patented May 20,1902.

I 2 Sheets-Sheet 2,

A. NEwELL. 1.00K For:` sLmlNG 0008's.

(Applicatin med oct. 1a, 1900.)

(No Model.)

VME' Nonms PETERS w.. PHom Llmo WASHINGTON n c ,UNITED STAT-Es PATENT GFFICEL AUeUsTUsNEwELL, OEY PAsA-DENA, CALIFORNIA, AssIGNoR To YTHE PEREECIsL-I-DING DOORCOMPANY, OE Los ANGELES, CALIFORNIA, A CORPORATION 0E CALIFORNIA.v f

' LOCK FoR-sL-IDmGDOo Rs.

SPECIFICATION forming part of Lenersratenp. Narrow-.27, dated May 2o, 1992.

Application filed October 13, 1900. Serial No. 33.020.r l (No'mndel.)

To a/ZZ whom it nutyconcern:

Be it known that 1,'.AUGUsrUs NEWELL, a

citizen of the United States, residing at Pasadena, in the county of Los Angeles and State of California, have invented a new and useful Lock for Sliding Doors, of'which the fol-y lowing is a specification.

The invention relates to improvements upon which 'is carried by the latch is arranged to slide horizontallyon the latch, whereby it isl made possible to lock the latch by sliding the` bolt beneath a stop which is directly above the catch, thereby avoiding any possibility of raising the-latch when locked by breaking orl bending portions thereof.v y

The accompanying drawings illustrate my invention. y Y

Figure I is an elevation showing-mynewlyinvented lock applied to a'door and'locked. Fragments of the door and door-casing are shown in section, andtheside ofthe frame of the lockis'omitted forclearness'oflillustration. A portion of the frame isshown in section. Fig. II shows'thewlocktvithlatch unlockedand thrown back and. released from the Vcatclrto open the door. `-Onejside'of thej frame is removedLas .in Fig. I. f Fig.- III is a fragmental detail showing the position of the parts when the bolt-is thrown outward to allow the key-,shaftto.beinserted or removedl Fig-IV is a view'showingjthe latch at'rest andl unlocked. The side of'theframelof theA lock is removed for clearn'ess'of illustration,"

and the lock is shown attached to a fragment of the door, which is shown in section. Fig.

V is an enlarged sectional detail on the line indicated by V V, Fig. VI. Fig. VI is a section on line indicated by VI VI, Fig. V. A

yThis'boltis preferably forked.V

In the presentinvention the sliding holt fragment ofthedoor is shown. Fig. VII is a i cates alatch pivoted'in saidframe and provided with 'a substantially horizontal way c. d indicates a sliding bolt carried in said way- AZ Z indicate the Iorksof thebolt.

e indicates a stop to intercept the bolt to l prevent the latch-from rising'when the bolt is in working position. This stop is preferably formed by theV face-plate of the frame a of the lock. The bolt d is arranged to'4 be retobe lifted for unlocking. By means of the slidingbolt in a horizontal way to enter bemoving bolt Vshown .inmylformeripatentfand `I do away with anyv` liability of A'disarrangement ofthe lockby the action-,.Qf'gravty.

g indicates a .wardpivotedto the bolt bya pivoth. l, f t indicates a catch above .the way c, andj indicates a catch on the w'ard'g' to engage the latch-carried catch c'.

ward in catching position.

7c' indicates a spring to normally hold the vtracted to escape'the stop Y`to allow the latch f km indicates a dogto .normallyengagejthe l.

boltgd and to-intercept the stoplthereof.

vn `indicatesl afspring tofholdthe dog nor- Inally in position to intercept the (stop. `The dog is spring-pressed by the spring ntoA hold the boltfriction-tight in its way, thus togayoid iany disturbing of the bolt by any jarring from opening and closing the doorand sudden turning of the key.`V

As in my said former patent, 'the loi'ckcanbe'op'ened by a key inserted from either side ofthe door, and the key is carried inside the lock by a key-shaft which is grooved longitudinally from end to end and has a peripheral groove at the middle to accommodate the bolt and its Ward or wards. It will be understood that any desired number of Wards may be employed, for the purpose of adding to the dificulty of picking the lock; but in ordinary doors sufficient variation of the key can be produced with a single ward by varying the ward and key or either of them with relation to width and thickness. With a lock of this type the key-shaft is to be made nearly but not quite equal in length to the thickness of the door and is inserted after the lock is in place.

o indicates the handholds for operating the latch. The handholds, as in my former patent, are pivoted at one end coaxially of the latch -pivot p, and the other ends of the handholds respectively seat the ends of the key-shaft. The ends of the key-shaft are substantially Hush with the outer faces of the handholds, respectively, which are inside the finishing-plates q, to which the handholds are pivoted, respectively. The faces of the handholds respectively come close to but do not touch the inside faces of the finishingplates q andare just inside the planes of the opposite faces of the door. The purpose of this arrangement is to prevent any marrin g of the exposed portions of the handhold.

fr indicates the key-shaft, and s the longitudidal groove extending from end to end of the shaft.

t indicates the peripheral groove.

u indicates the stem of the key-shaft, upon which the end of the ward g normally rests.

'u indicates a stop formed bya pin inserted through the forks Z Z of the bolt CZ. The pressure of the spring k holds the ward g down in the groove 15 and against the stem u. The bolt CZ is provided with a notch w to receive the key and to enable the key to throw the bolt. The ward g may be plain where it is to be engaged by the key, or it may be notched, as indicated at 'y indicates the key, which is flat and is provided with a stop 2 2 indicate rings around the cylindrical key-shaft r on opposite sides, respectively, of the latch l).

The ability of the key inserted in the keyshaf t to throw the bolt depends upon the relative widths of key and ward, and the key is preferably notched, as at 3, to admit the ward when the key is in the right position. The use of the rings 2 2 enables the user to invariably insert the key to the right position for throwing the bolt. When the stop z engages the ring 2, the notch 3 will be in position to receive the ward g and to raise it appropriately when the key is turned.

The arms Z Z of the forked bolt d embrace the ward q and the catch fi, which is fixed to the latch b, and the bolt slides freely within the limits allowed; but when the catch 7' of the ward g engages the catch t' of the latch the bolt cannot be withdrawn from its locking position. When the bolt is thrown into its locking position and projects between the stop e and the latch b, the latch cannot be raised, and therefore the door is positively locked. When the bolt is withdrawn, the latch is free to rise.

In order to assemble the parts of the lock, one side of the frame 0L being removed, the latch, with the bolt in its unlocked position, will be inserted and passed through the front opening 4. of the frame, and the latch will then be seated upon its pivot p. Then the side a of the frame will be brought into place and fastened by the rivets 5. Then the lock without the key-shaft will be inserted into a mortise which is in the door 7 and will be sesured by the screws 8. Then the operator will throw the dog m out of the way of the catch 9, with which the bolt cZ is furnished, and then the ward g will be thrown up by the straight edge of the key or by any other suitable means to allow the bolt to be thrown fully forward out of the circular way or keythe pivot-pin 13 will be inserted through the' hollow latch-pivot 1J, and the rings 2 2 will be placed in position on the key-shaft on opposite sides of the latch, respectively. Then the iinishing-plates, with the handholds pivoted thereto by the socketed pivots 14, will be brought into position to seat the ends oi' the pivot-pin 13 in the sockets of the pivots 14, respectively, and to seat the ends of the key-shaft in the sockets 16 of said handholds. The finishing-plates q will then befastened to the door by screws (not shown) passed through holes 17 in the finishing-plates.

The key y is preferably provided with a narrow end 18. The finishing-plates q are respectively provided with an opening 19, which is smaller than the key-shaft, and is provided with a notch 20, as in my former patent.

21 indicates a cork cushion screwed through the frame of the lock to cushion the latch, as shown in Fig'. II.

22 23 indicate raised portions on the inner face of the finishing-plate to hold the handhold just free from rubbing'on the finishingplate.

24 indicates a guard to prevent the swinging end of the handhold from becoming displaced.

25 indicates a stop on the nishingplate, and 26 27 indicate lugs 011 the handheld to engage the stop 25 to limit the swing of the handheld.

In order to provide for ready adjustment in case the lock should be thrown out of alinement by the settling of the timbers, I have provided an adjustable catch, which is clearly illustrated in Fig. 1.

30 indicates the main catch-plate, which is fastened to the door-jamb 31 by screws 32.

33 indicates a sliding latch-plate fastened to the inside of the catch-plate within the recess 34 in the door-jamb,"which receives the handle of the latch b. The sliding latch-plate ,33 is furnished with a slot 35, which its on the object-being to furnish the main catchmand.

that the door is brought lowerthan origi- 4plate 30 with a latch-holding partw-hich may be raised and lowered to the appropriate height for catching the latch b.

In practice when the door is first mounted the sliding latch-plate33 will be fastened to the rear side of the main catch-plate 30 midway of its adjustment, so that the latch-plate may be raised or lowered, as occasion may de- In case the timbers should settle, so

nally intended,- the main catch-plate 30 may be removed, thus giving access tothe screw 37, which is then loosened and the sliding plate 33 lowered to theappropriate height. Then the-screw 37 will be tightened and the main catchplate fastened in place.

In case the catch requires to be raised this can be readily accomplished by moving the 'sliding plate 33 upward.

What I claim, and desire to secure by Letters Patent of the United States, is-

l. In a lock, the combination of a frame; a

latch pi voted in said frame and provided with a substantially horizontal Way a slidingbolt carried in said way; i a stopto intercept the bolt to prevent the latch from rising when the bolt is in locking position; said bolt being arranged to be retracted to escape the stop to allow the latch tobe lifted for unlocking.

2. In a lock, the combination of a frame; a latch pivote'd'in the frame and furnished with a horizontal way and with a catch; a sliding bolt to slide along said way; a stop onsaid frame above said Way to intercept the bolt to prevent the latch from rising when the bolt is in locking position; a ward pivoted to said bolt under the catch carried by said'latch and furnished with a catch toengage the latchcarried catch; and a spring to normally hold the Ward in catching position.

3. In a lock, the combination of a frame; a latchpivoted in said frame andfurnished with a horizontal way and with a catch; a sliding bolt to slide along said way and provided with a stop g a stop on said frame above the Way to intercept the bolt to prevent the latch from rising'when the bolt is in locking'position;` award pivoted to the bolt under the catch carried by said latch, and furnished with a catch to engage 'said latch-carried` catch;` a spring to normally hold the ward in' catching position; and adog tonormally engage the bolt to intercepty the stop thereof. j

in said way and furnished with astop; and

a spring-pressedk dog pivoted t'o said latch to l normallyengagc said boltand interceptthe said bolt-stop. v p z 5. In a lock, the combination of a latch furnished with a boltway and with a circular' j key-shaft way; a cylindrical key-shaft fitted inthe key-shaft way and slotted longitudinally from end to end, and furnished with a peripheral groove to correspond with the boltway; a bolt sliding Iin said-boltway'and peripheral groove; a key to enter the longitudi-l nal slot to throw the bolt, and furnished with la stop to project outside the slot 'and a keystoppingring on the key-shaft andlitting against the latch to intercept thestopvof the f key, to stop the key-'in position for appropriately engaging the bolt.

6. The combinati n with a latch and a bolt sliding in said latch, of a cylindrical key-shaft Y torotate in said latch, and furnished with ya peripheral groove to receive saidbolt; anda ring around the key-shaft to form a stop to limit theinsertion of the key substantially'y as set forth.

7. The combination of a latch; a bolt slidbolt to withdraw it when turned in,y one direci tion, and to engage the bolt to expelit from the key-shaft when turned in the other direction; and a catch to normally holdvthe endg of the bolt in the path-of the Vkey and release said bolt to allow its expulsion.

' 8. In a lock furnished with a gravitylatch i l a main catch-plate adaptedifor attachment to the door-post and furnished with a sliding latch-plate. f y

9. In a lock, the combination of a catchplate furnished on its side' with afstud; a

IIO

latch-plate furnished with a slot fitted on said stud;` and a screw inthe stud'l to hold ther latch-plate in position.

10. YIn a lock, the combination ofla catchplate; a latch-plate at'the rear of said ,catchplate and furnished with a slotg'lfand a screw inserted through the slot for adjustably securing. the latch-platev on the catch-plate;

In. testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, at Los Angeles,in the State of California, this 8th day of'IOctober, 1900. t

AUGUSTUS NEWEL'L.

Witnesses:r l i JAMES R. ToWNsEND, Y FRANCIS M; ToWNsEND.

l Y 65 t. In a lock, the combination of a pivoted j latch furnished with a way; a bolt to slideY 

